Good luck, post back when able of how you're doing. When running above idle speed, these two screws do not affect the operation/speed of the motor, only at idle. So it should be set just about 1 - 2 turns in from where the butterfly rests, and can be adjusted more, or less, according to the idle rpms, once motor is running properly. The idle stop screw prevents the carb from going too slow. So opening it more adds more air mixture (leaner running), and closing this screw reduces air mixture (richer running). This screw only adjusts the amount of air that mixes with the factory preset amount of fuel at idle. 75 to 1.5 turns open from lightly seated - never over tighten). Do you pre-mix oil and gas? The new carb you put on? Did you adjust the air mix screw, or the idle stop screw? What is the setting of the idle air-mix screw ( # turns closed, till lightly seated)? The setting should be in the manual, what does the manual say to set it at (it should be somewhere between. The reed valve is located in a reed plate that is Diaphragm should be renewed if air leaks or cracks are defective or questionable parts should be Vacuum pulsa-tions from the engine crankcase. Side of power head cylinder blOCk and is actuated by pressure and Adjust float level by bending floatįUEL PUMP. (0.47-0.55 in.) away from sealing ring surface of carburetor body remove float bowl (7) and invertĬarburetor body (1). Main fuel metering is controlled by main jet (2). Stop screw (12) so engine idles at approximately 900-1000 rpm.Īdjust pilot air screw so engine idles smooth and will accelerateĬ1eanlv without hesitation. Operating temperature and running in forward gear. FinalĬar-buretor adjustment should be made with engine at normal Initial setting of pilot air screw (15)įrom a lightly seated posi-tion should be 3/.-11/. oz) Install air vent plug before removing oil filler tube from drain hole. to en-sure a water tight seal.ĬARBURETOR. Outboard Motor Suzuki DF9,9 Service Manual. Reinstall vent and fill plugs securely using a new gasket, if The lower unit gears and bearings are lubricated byĪpproximately 85 mL (2.9 ozs.) of SAE 90 hypoid outboard gear oil. Gasoline and oil should be thoroughly mixed. Regular or no-lead automotive gasoline having an 85-95 octane fuel :oil ratios should be 20:1 duringīreak-in and 30:1 for normal service. The power head is lubricated by oil mixed with the fuel.įuel:oil ratios should be 30:1 during break-in of a new or rebuiltĮngine and 50: 1 for normal service when using a BIA certified TC-WĮngine oil or Suzuki "CCI" oil. 22-35 N'm (195-310ĬONDENSED SERVICE DATA NOTE: Metric fasteners are used NOTE: Metric fasteners are used throughout outboard motor. ForĮxample, if first number in serial number is 1, model year is The first number in serial number corresponds with model year. The years 1977, 19 are identifiedīy the letters "C," "D" and "F" respectively. The first character of serial number indicates Six characters indicate the model and second six characters are Fuel:oil ratio should be 30: I during break-in of a new or rebuilt engine. Motors, refer to numbers located on motor clamp bracket. Recommended oil is Suzuki Outboard Motor Oil or a good quality NMMA certified TC-W twostroke engine oil. 22-35 N'm (195-310 in.-Ibs.)ġb determine model and year of manufacture of Suzuki outboard 3.0 mm (0.118 in.) TIGHTENING TORQUES Cylinder Head. I fitted a stainless lifting handle into the top casing as warranty will not be an issue with a secondhand 2-stroke, something like that might be very useful with a 4-5 hp, would need secure mounting of course but even more useful.lthough the Mariner 5 is about the best one will get re. 0.053-0.060 mm (0.0021-0.0024 in.) Piston Pin Diameter. Suzuki dt4 outboard Oil ratios can be confusing and daunting. See Text SIZES-CLEARANCES Piston Ring End Gap. Crankshaft Runout at Main Suzuki OT2 Bore. CONDENSED SERVICE DATA NOTE: Metric fasteners are used throughout outboard motor. For example, if first number in serial number is 1, model year is 1981. Starting with 1980, the first number in serial number corresponds with model year. The years 1977, 19 are identified by the letters "C," "D" and "F" respectively. The first character of serial number indicates year of manufacture. The first six characters indicate the model and second six characters are motor serial number. Box 1100 Brea, California 92621 SUZUKI DT2 1b determine model and year of manufacture of Suzuki outboard motors, refer to numbers located on motor clamp bracket. SERVICE MANUAL TUNE-UP SUZUKI SUZUKI AMERICA CORPORATION 3251 E.
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